Amnêsia

Waking up in a strange virtual world with no recollection of the past, Hakuno finds himself forced to fight for survival in a war he does not understand for a prize beyond value; the opportunity to have one's wish granted. With only an enigmatic "Servant" by his side, Hakuno Kishinami will have to face both friends and foes in battles to the death in order to not only gain possession of a mysterious object known as the "Holy Grail," but also to find the answer to the most important question of all: "Who am I?"

In a futuristic world almost barren of life, mankind is confined to mechanized domed cities where A.I.’s control all aspects of life. In this world, humans are no longer born, they are manufactured in a production line; and alongside them live androids known as autoreivs. Within one of these domed sanctuaries named Romdeau lives Re-l Mayer, one of a few citizens who aren’t entirely prevented from thinking. Her grandfather's prominent position and the affection of the scientist Daedalus have left her more free will than is normally allowed, but Re-l has started to question the sanctity of the city and the citizens' perfect way of life. With mysterious beings known as proxies causing havoc and a man named Vincent causing great influence on her life, Re-l must travel outside of the city to find the answers she seeks and discover the mystery behind "the awakening".

The story centers on "Chronos Rulers," those who fight the time-eating demons that appear when people wish they could turn back time. The Chronos Rulers fight a time-manipulation battle against these demons.

Located in the center of a remote island, the Abyss is the last unexplored region, a huge and treacherous fathomless hole inhabited by strange creatures where only the bravest adventurers descend in search of ancient relics. In the upper levels of the Abyss, Riko, a girl who dreams of becoming an explorer, stumbles upon a mysterious little boy.

John Doe tell the story of a man who wakes up naked on an island off the coast of Seattle, knowing everything in the world there is to know—except for who he is and how and why he ended up there.

During the "super moon" in 2011, Lei Chu Xia escaped from her murderer and travelled into the future to the year 2021. She appears in front of Xu Xiao Dong, and somehow, her existence seems to depend on Xu Xiao Dong’s presence in which they have to stay close to each other. Having no choice but to stay together, Xu Xiao Dong decides to help Lei Chu Xia recover her memory and find out the truth from 10 years ago.

Kamen Rider: Dragon Knight is an American science fiction superhero television series that originally aired on The CW, as part of the CW4Kids programming block, from December 13, 2008 to December 26, 2009. It is an adaptation of the Japanese tokusatsu show Kamen Rider Ryuki and is the second installment in the Kamen Rider franchise to be adapted for American audiences after Saban's Masked Rider in 1995. The series was developed for television by Steve and Michael Wang and produced by Jimmy Sprague through Adness Entertainment.

Duel Masters LOST is an alternative take on the 2022 Duel Masters WIN anime series that explores what would have happened if the protagonist, Win Kirifuda, had been defeated and lost his memories in the process. Set in Shinjuku against the backdrop of a series of mysterious disappearances, Win's stagnant daily life begins to change with the arrival of a mysterious new transfer student named Crysta...

This story takes place in a fictional town, in a fictional country, in a fictional world. One morning, a young lady awakens to find that she has lost all her memories prior to that morning. Her life, her relationships, her very name—all gone. All that's left is a cell phone with numbers and names she doesn't recognize and Orion, a young boy that only she appears to be able to see. With Orion's guidance, she struggles to make sense of herself, a boyfriend she doesn't know and the thousand and one little things that make up a daily life. But with no memories left, the only alternative is to forge new ones, even if that means leaving old loves behind.

Since ancient times, Japan has upheld the tradition of the 12 Zodiac signs. Eto-musumes (Zodiac girls), who have the appearance and behavior of the animals of the Zodiac, are pure hearted messengers who act as a bridge between humans and the gods. Every 60 years, the “ETM 12” tournament takes place in Tokyo’s Akihabara district, where aspiring girls from all over Japan gather for the chance to become the next zodiac sign.

Bai Yin Qi is the King of Sumeru. He is handsome and intelligent, but his strengths are of no use in an imperial court controlled by corrupt officials. Assassins come and go, but one day, he falls in love with female assassin Yu Yan. Because of another assassination attempt wherein his loyal guard Tian Xiao Li risks his life to save the King along with a mysterious pocket watch, the three time travel to the year 2018. Bai Yin Qi assumes the identity of the sole successor of the powerful Bai Group. Yet he faces danger on all fronts due to his background as an illegitimate child. When he meets Yu Yan in the present day, he realizes that she no longer remembers him.

Ye Yuanan is the daughter of the Assistant Minister of Revenue during the Tang Dynasty. Somewhat of an amateur sleuth, Yuanan loves solving mysteries and is constantly in competition with Zhao Lanzhi, a police officer who is trying to do his job. Yuanan has the assistance of Mu Le, a young man she took in as a family servant after saving him from danger. But what will Yuanan do when she discovers Mu Le’s true identity?

Merc Storia takes places in a world where humans and monsters coexist. The protagonist, Yuu, is a healer apprentice and possesses the ability to tame monsters. In a quest to regain the memories of Merc, a girl confined in a bottle, the pair embarks on a journey.

Kouki’s empty life shifts after a near-death stab—and waking to find a memoryless angel in his home. One lost soul just met another.

The strange but beautiful love story of a genius doctor who suffers from "Cinderella Memory Disorder" in which the memories of the previous day disappear at twelve o'clock and a washed-up actress.

Sōya Kuroi has dreams of people with superpowers fighting a massive dragon in the sky, but his real life is almost as weird. He's had amnesia for about two weeks and been taken in by a maid and an anthropomorphic cat. When a UFO in the shape of a stuffed bear approaches Sorimasaka City and other metros around the world, he's startled to see seven rainbow-sparkling heroes zoom out to confront it – just like in his dream. Even weirder, the maid wants him to leave his shelter to confront these heroes and take the source of their power.

It has been several centuries since human population has declined. Food has become harder to find and what little sources the humans have are considered highly valuable. The most prosperous species on the Earth are "Fairies", 10 cm tall creatures with high intelligence and a great love for sweets. A nameless girl, the main character, became a UN arbitrator between the humans and the fairies and had returned to her hometown to help her grandfather. One day, the village is sent some strange products made by a company called FairyCo. Since the villagers are wary of using the products, the girl, her grandfather, and a nameless boy decide to go to the factory to find out about the mysterious products and who is behind making them.

After a tragic accident, an amnesiac teen tries to rebuild her life at a memory disorders center but becomes suspicious of her unconventional treatment.

A baker by day and demon fighter by night, Zhong Kui, a reincarnated deity must jog his amnesiac lover's memory of their millennium-long romance.

When a giant robot suddenly attacks the city, a high-school student named Aoba is saved by a classmate who's piloting her own mecha. After accepting an offer to join the alliance she's is a part of, Aoba is thrust into the middle of high-flying robot warfare.